Editor crashes on startup: ShaderCompileWorker Fatal Error

Development Programming & Scripting C++
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1

On a fresh computer install, both the pre-compiled Editor and source compiled version of UE4 Editor crashes immediately on launch. Clicking “Launch” on the UE4 Launcher results in an almost-immediate unhandled crash (no crash handler dialog opens, only the Windows default “UE4 has stopped working”. Compiling Development Editor x64 in VS2012 (Update 4) I hit a DebugBreak in the shader compile worker with it saying “ShaderCompileWorker Fatal Error”.

Rig:

  • GPU: GeForce GTX 760
  • CPU: Intel i5-4670K
  • Memory: 16GB
  • Operating System: Microsoft Windows 7 Professional
  • June 2010 DirectX runtime is installed
  • Latest drivers ( GeForce 335.23 ) are installed

There were some similar questions to this that had to do with having both an integrated graphics chip and a dedicated graphics card ( UE4Editor-Cmd.exe crashed after launch - Programming & Scripting - Epic Developer Community Forums ), but following those steps I did not have the same options/it did not fix the problem.

2

I fixed the crash by installing Windows 7 Professional Service Pack 1 through Windows Update.

This crash was 100% reproducible every time launching the editor/source compiled version, only upon installing Windows 7 SP1 did the problem go away.

3

I got the same error on Windows 8.1 having compiled UE4 using VS2012. It was caused by the shader compiler worker failing to find one of the VS2013 CRT dlls.

Installing the Visual C++ Redistributable Packages for Visual Studio 2013 fixed it for me.

4

I have been installed vcredist_x64.exe but it still not fixed

5

It’s possible you’re missing a different DLL then, or it’s failing for a different reason. Have you installed the June 2010 DirectX runtime? I can’t remember how I found out which DLL it was missing now, I may have simply tried to run the shader compiler directly from windows, without any command line options, if there’s nothing useful in the visual studio output window.

6

Hey ryuikuya,

This issue is from March, so it’s likely a different error with the ShaderCompileWorker. I would recommend making a new Question thread for this. Have you tried the usual solutions, such as reinstalling the engine or running an older version?

The user in this thread fixed the problem by copying the UE4 directory over from a friend’s computer, that could potentially fix your issue as well.